Prediction Will the force Fs you exert on the spring scale to lift the load be g

Question

Prediction Will the force Fs you exert on the spring scale to lift the load be greater than, less than, or equal to the weight FL of the load? Why? You can think of the equipment for this lab as a machine. You put Ws joules of work into the machine by pulling the scale a distance ds with a force FS. and you get WL joules of work out of the machine as it lifts the load a distance dL with a force FL (equal to the weight of the load). Do you predict that WL the work you get out, will be greater than, less than, or equal to Ws, the work you put in? Explain.

Explanation / Answer

-Fs will be less than the weight of the load. However, you'll have to pull the scale a further distance to lift the load. -Wl will be = Ws

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